CN1446983B - Method for repairing pavement by using asphalt rubber - Google Patents
Method for repairing pavement by using asphalt rubber Download PDFInfo
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- CN1446983B CN1446983B CN 02116218 CN02116218A CN1446983B CN 1446983 B CN1446983 B CN 1446983B CN 02116218 CN02116218 CN 02116218 CN 02116218 A CN02116218 A CN 02116218A CN 1446983 B CN1446983 B CN 1446983B
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- asphalt rubber
- pitch
- concrete
- impact
- road surface
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Abstract
A method for repairing pavement with asphalt rubber includes breaking the damaged pavement, compacting it and spreading asphalt rubber layer.
Description
Technical field
The present invention relates to utilize the method for asphalt rubber redeck, particularly utilize asphalt rubber to cooperate and impact the method that real pressure technology is repaired damaged road surface.
Background technology
Pitch and cement concrete pavement various cracks can occur through after a while use, and disrepair phenomenon takes place.At this moment, need repair the road surface that crack or breakage occur, to guarantee evenness of road surface.
Usually, the flexible pavement of breakage is repaired the method that is adopted be, utilize equipment such as air drill to smash damaged flexible pavement earlier, broken supercrust (pitch fragment) is removed from the road surface, be deposited in other places.Then, aspect impaired under original blacktop is transformed and again compacting until meeting the requirements.After this, making pitch again.Said process is not only time-consuming, consumption wealth, and can produce the old asphalt concrete that pile up like a mountain.
When the cement concrete pavement of breakage is repaired, adopt a series of discontinuous methods to smash cement concrete pavement layer usually, broken supercrust (broken concrete) is removed from the road surface, be deposited in other places.Again behind the damaged layer under the remodeling concrete road surface again compacting until meeting the requirements.Said process is not only time-consuming, consumption wealth, and can produce the old concrete that pile up like a mountain.
Because asphalt rubber has characteristics such as high viscosity, high softening-point, in recent years, people begin to utilize asphalt rubber to be processed into the asphalt rubber concrete, and use it for and build new road, particularly high-grade highway.
Summary of the invention
An object of the present invention is to provide a kind of new method of utilizing asphalt rubber to cooperate impact-rolling technique that damaged road surface is repaired.
Another object of the present invention is to save to repair damaged used time and the cost in road surface.
Another object of the present invention is to make full use of Available Material.
A method according to the present present invention comprises the following steps: rupture damaged pitch or cement concrete pavement layer; Further roll firm above-mentioned pitch that is ruptured or cement concrete pavement layer; Utilize asphalt rubber to prepare the asphalt rubber concrete; With the new road surface of asphalt rubber concrete making for preparing; Above-mentioned asphalt rubber rigid pavement is rolled.Wherein damaged pitch or the cement concrete pavement layer of fracture realized by shock compaction.Asphalt rubber extracts and processing with brand-new technology from pitch, oil plant and junked tire.
Another kind of method according to the present invention comprises the following steps: broken pitch or cement concrete pavement layer; Remove and give up pitch or the cement concrete that is broken; Remove the pitch that is broken or the impaired aspect below the layer of concrete, and with replacing new aspect; Utilize controlled shock compaction method that corresponding aspect is carried out impact-rolling, set up a new subbase; Lay new basic unit and with its compacting; Preparation asphalt rubber concrete; The asphalt rubber concrete for preparing is layered on the above-mentioned sub-surface forms the road surface; Above-mentioned asphalt rubber rigid pavement is rolled.Wherein broken damaged pitch or cement concrete pavement layer are realized by shock compaction; The pitch that is broken or the corresponding surface layer under the cement-concrete road further rolled by shock compaction realize.Asphalt rubber extracts and processing with brand-new technology from pitch, oil plant and junked tire.
Utilize method of the present invention, can save greatly and transform damaged used time and the construction costs in road surface, reduce when utilizing the prior art transformation to repair damaged road surface the influence of traffic and the time of blocked road.In addition, because the characteristic of asphalt rubber and the employing of impact-rolling technique are compared with the bituminous concrete that uses traditional asphalt binder processing, the road surface thickness of overhauling road with the asphalt rubber concrete can obviously reduce.
Embodiments of the invention are described below with reference to accompanying drawings.
The accompanying drawing summary
Fig. 1 is the schematic diagram of road section;
Fig. 2 is the schematic diagram according to an embodiment of the inventive method;
Fig. 3 is the schematic diagram according to another embodiment of the inventive method.
As shown in Figure 1, road generally include such which floor, that is, and nethermost roadbed, the subbase on it, basic unit and supercrust.Supercrust is one deck bituminous concrete or cement concrete normally.
Use or other reason owing to long-time, various cracks usually appear in the supercrust that is made of pitch or cement concrete, take place damaged.
With reference to Fig. 2, road surface for repairing or transform at first utilizes shock compaction equipment, for example the three limit types or the polygonal impact densifying-machine of South Africa Lan Pai company, to a certain degree impact-rolling is carried out on the road surface that will repair or transform, smash bituminous concrete or cement concrete pavement layer.Usually the thickness of bituminous concrete or cement concrete pavement layer will carry out impact-rolling several times between 200 millimeters to 300 millimeters, the road surface could be smashed.Therefore, smash the required impact-rolling number of times in road surface, decide by experiment according to the thickness on road surface and the tonnage of material and impact densifying-machine.Generally need 15 to 25 times punching press, 200 millimeters bituminous concrete or cement concrete pavement layers to 300 millimeters thick could be smashed.Usually supercrust to be smashed about 300 millimeters to 900 millimeters fragment.Broken supercrust other layer below it constituted the basic unit of the road that will repair.This basic unit obviously increases than the thickness of former basic unit, and intensity is obviously strengthened.
In some cases, may need bituminous concrete or the further impact-rolling of cement concrete layer, improving the degree of compaction of this layer, so that provide a firm roadbed and basic unit for improved road surface reasonable in design to smashing.At this moment should be as requested and actual conditions, by testing the number of times of determining impact-rolling, until meeting the requirements.For some location, further impact-rolling may destroy original sub-surface.Therefore, whether need the number of times of further impact-rolling and concrete impact-rolling, be according to the roadbed of construction site, basic unit with to situations such as the requirement decision of road.
Broken bituminous concrete or cement concrete pavement layer are formed the basic unit of repairing road by shock compaction, significantly reduced the expense that broken bituminous concrete or concrete pavement layer are transported, and guaranteed the utilization again of these materials.In addition, be to be undertaken owing to smash by continuous impact-rolling with compacting, therefore, saved cargo handling operation than discontinuous operating type of the prior art, thereby significantly reduced the time that influences traffic because of repairing the roads.
Available discarded object-bits crumb rubber that asphalt rubber can extract from pitch, oil plant and old tire processes.The processing of asphalt rubber binder, storage and use are to be finished by the special agitator that is positioned at the building site.Bituminous concrete can use common hot-mix asphalt mixture equipment to process.
Utilize the common equipment of paving the way with the asphalt rubber concrete making that processes on the face of old road, and roll according to relevant technical requirements.Because concrete characteristic of asphalt rubber and advantage, the thickness of the supercrust that is made of the asphalt rubber concrete can reduce about 50% than pitch or cement concrete pavement layer.
With reference to Fig. 3, under a stable condition, said method can not satisfy requirement of engineering, as not forming enough firm new subbase by further rolling, then to utilize shock compaction equipment, the for example three limit types or the polygonal impact densifying-machine of South Africa Lan Pai company, shock compaction is carried out on the road surface that will repair or transform, after smashing bituminous concrete or cement concrete pavement layer, the pitch or the cement concrete layer that then need to be broken are removed, and with the aspect of the breakage below it, remove as basic unit and subbase, replace it with new basic unit and subbase.By the control Impact Compaction Technique aspect under protobitumen or the cement concrete pavement layer is carried out restoration updating, promptly by the effect of the each impact-rolling of monitoring and the number of times of impact-rolling, reach the effect that expection requires, form new satisfactory basic unit and subbase.And then carry out subsequent handling, lay new supercrust with the asphalt rubber concrete.
More than by embodiment the present invention has been described, but the present invention is not limited thereto.Those skilled in the art can make different modifications to the present invention under the situation that does not break away from spirit of the present invention.All modifications all falls within the scope of the present invention.
Claims (2)
1. method of utilizing asphalt rubber to cooperate impact-rolling technique that damaged road surface is repaired is characterized in that comprising:
Utilize impact densifying-machine that the pitch or the cement concrete pavement layer of breakage are crushed to 300 millimeters to 900 millimeters fragment;
Utilize further firm above-mentioned pitch that is broken of impact densifying-machine or cement concrete pavement;
Utilize asphalt rubber to prepare the asphalt rubber concrete;
The asphalt rubber concrete making for preparing is formed new road surface on former supercrust;
Above-mentioned asphalt rubber rigid pavement is rolled,
Wherein, used asphalt rubber is that the available discarded object-bits crumb rubber that extracts from pitch, oil plant and old tire processes.
2. according to the process of claim 1 wherein that pitch or cement concrete pavement layer to breakage further firmly realize by shock compaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116218 CN1446983B (en) | 2002-03-21 | 2002-03-21 | Method for repairing pavement by using asphalt rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02116218 CN1446983B (en) | 2002-03-21 | 2002-03-21 | Method for repairing pavement by using asphalt rubber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1446983A CN1446983A (en) | 2003-10-08 |
| CN1446983B true CN1446983B (en) | 2011-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02116218 Expired - Lifetime CN1446983B (en) | 2002-03-21 | 2002-03-21 | Method for repairing pavement by using asphalt rubber |
Country Status (1)
| Country | Link |
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| CN (1) | CN1446983B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436716C (en) * | 2004-09-20 | 2008-11-26 | 贺杰 | Breaking method for cement concrete pavement layer |
| CN102041762B (en) * | 2010-12-03 | 2012-07-04 | 上海市城市建设设计研究院 | Road rehabilitation method for guaranteeing compaction effect of pavement structure |
| CN103498398B (en) * | 2013-10-16 | 2016-04-13 | 南京林业大学 | Concrete on fire flexible pavement residue functional performance is assessed and determines the method for recovery scenario |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460649A (en) * | 1994-06-06 | 1995-10-24 | Strassman; David R. | Fiber-reinforced rubber asphalt composition |
| CN1274030A (en) * | 1999-05-14 | 2000-11-22 | 蓝派冲击压实技术开发(北京)有限公司 | Impacting compact method for reforming concrete road |
| CN1286336A (en) * | 1999-08-26 | 2001-03-07 | 蓝派冲击压实技术开发(北京)有限公司 | Method for maintaining asphalt pavement |
-
2002
- 2002-03-21 CN CN 02116218 patent/CN1446983B/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460649A (en) * | 1994-06-06 | 1995-10-24 | Strassman; David R. | Fiber-reinforced rubber asphalt composition |
| CN1274030A (en) * | 1999-05-14 | 2000-11-22 | 蓝派冲击压实技术开发(北京)有限公司 | Impacting compact method for reforming concrete road |
| CN1286336A (en) * | 1999-08-26 | 2001-03-07 | 蓝派冲击压实技术开发(北京)有限公司 | Method for maintaining asphalt pavement |
Non-Patent Citations (7)
| Title |
|---|
| 王文贵，覃淑媛.橡胶沥青在北方高寒地区公路工程中的应用.内蒙古公路与运输.1996,1-3. * |
| 石秋侠，靳长征.利用废旧橡胶掺配制作道路用改性橡胶沥青.山西交通科技 127.1999,(127),第1栏13行-第3栏20行. |
| 石秋侠,靳长征.利用废旧橡胶掺配制作道路用改性橡胶沥青.山西交通科技 127.1999,(127),第1栏13行-第3栏20行. * |
| 陈桁，吕伟民.钱塘江大桥橡胶沥青桥面铺装的探讨.华东公路 92.1995,(92),第6栏14行-17行. |
| 陈桁,吕伟民.钱塘江大桥橡胶沥青桥面铺装的探讨.华东公路 92.1995,(92),第6栏14行-17行. * |
| 魏连雨，吕大镛，李巧茹，李国强.乳化橡胶沥青混凝土半刚性复合路面材料实验研究.河北工业大学学报29 3.2000,29(3),第1页-第3页. |
| 魏连雨,吕大镛,李巧茹,李国强.乳化橡胶沥青混凝土半刚性复合路面材料实验研究.河北工业大学学报29 3.2000,29(3),第1页-第3页. * |
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| CN1446983A (en) | 2003-10-08 |
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Granted publication date: 20110907 |